The Skew Sk characterises the asymmetry of the amplitude distribution. A negative skew Sk indicates a good bearing behavior of the profile.

The Amplitude Density Curve is the graphical representation of the class frequency of all profile peaks.

MITUTOYO SURFTEST SJ-301 SERIES

A portable surface roughness tester with a touch-panel LCD and a built in printer.

Unbeatable portable surface roughness tester created for ease-of use and as a cost-effective solution to a wide variety of measuring needs.

●Simple operations performed with the large LCD touch-panel   The large LCD window makes it easy to read measurement result and analysis graph at a glance. The profile-speed thermal printer prints out clear and fast. Designed to increase operability - the large keypads are used of measuring operations, while the touch panel LCD is used for setting various measurement conditions. Measured data can be downloaded to a PC. Various analyses can be made by using Surfpak-SJ, dedicated software for surface texture analysis.

● The Measure-Start button and others frequently used are shop-hardened and resistant to workshop contaminants. Equipped with a large capacity battery that, when fully charged, allows approximately 600 measurements to be made.

●The measuring conditions stored in the SJ-301 can be recalled and switched by direct key operations.

●Measured data can be saved at the measurement site and be printed out or recalculated later.

●By using an optional memory card, a maximum of 20 sets of measuring conditions, measured data, and statistical results can be stored.

●Equipped with a highly sophisticated, high-speed thermal printer.

●Selectable orientation for printout-Choose the portrait for conventional printout or the landscape for printing out the image as it is displayed.

●Key-masking function limits touch panel operation to prevent the detector calibration data and measuring conditions from being altered or deleted. Measuring conditions can be easily controlled among multiple users.

●The SJ-301 keypads have excellent durability-No need to worry about oil stains from the user's hand.

●Measurement results and analysis profiles can be read in the LCD window. Signal waves can be scrolled smaller or larger, enabling the operator to read fine details.

●Statistical analysis of one parameter is possible. Displays and prints frequency histograms as well as statistical calculation results (average, standard deviation, masimum value, minimum value, pass ratio).

● Tolerance values in three-steps can be set for the surface roughness parameters. Judgment symbol is displayed in the result display for a quick judgment or GO/NG.

● Display/printout language is selectable from among English, German, French, Italy, Spanish and Japanese.

● Calibration can be easily performed by simply inputting and meauring the Ra value inscribed on the roughness reference specimen. No adjustment with a tool, such as a volume adjustment, etc. is required.

● The unit can be customize so that the user can select only the parameters needed from a variety of surface roughness parameters provided.

● For greater mobility the SJ-301 has a built-in battery that makes it possible to inspect surface roughness even at a site where there is no electrical outlet available.

● Portable and convenient-the rive unit and the detector can be stored in the display unit. (Carrying case is a standard accessory). Measurement can be performed while the display unit is in the carrying case. The carrying case can be used to protect the display unit.

● An arbitrary evaluation length within the range of 0.3mm - 12.5mm (Unit: 0.1mm) can be set.

● Measurement in a limited space, where measurement is difficult under the measuring conditions in accordance with JIS standards, is made possible by using the start-up OFF button.

●Special detectors are available for measurements that cannot be performed with a standard detector such as measurement of small-diameters and deep-grooves. No tool is required for replacing the detector. Simply pull out and insert a detector. Just one SH-301 can perform measurement on a variety  of workpieces, since various types of detectors, depending on the workpiece, can be used.

● The SJ-301 has a high accuracy detector which employs a differential inductance method, which is used in high-end models. Measurement with a high-accuracy and a wide measuring range of 350µm. Parameters that require high-accuracy feed such as Sm and S can be measured with the SJ-301. The detector can be retracted into the drive unit when the SJ-301 is not performing a meaurement.

Rapp Industrial Sales * 127 Main Street * Connoquenessing, Pa 16027

Phone 888-789-7277 * 724-789-7853 * Fax 724-789-7288 Email: sales @rappindustrialsales.com